JP6528925B1 - Elevator door equipment - Google Patents

Abstract

The door apparatus of the elevator according to the present invention is provided at the lower part of the single-opening type door, and is provided with a door slip preventing member which enters below the door contact side frame on which the door abuts on the door shoe fitted in the sill groove of the sill. When the door closes the entrance and exit, a housing portion for housing the door slip prevention member is provided below the door contact side frame. When the door closes the doorway, the door slip-out prevention member enters the lower frame of the door contact side frame, so an external force is applied in a direction perpendicular to the opening and closing direction of the door and the door is bent. Even if the door shoe is limited, the door shoe is limited to move upward due to contact with the lower part of the door stop side frame located at the upper part of the housing portion, so that the door shoe is prevented from coming off the sill groove.

Description

  The present invention relates to a door apparatus of an elevator, and more particularly to a technology for preventing a door from coming off a sill by external force applied to the door.

  A conventional elevator door is suspended on a door hanger that moves along a door rail provided above the entrance. Also, a sill provided with a sill groove is disposed on the lower surface of the entrance, and a door shoe provided at the lower end of the elevator door is configured to move horizontally into the sill groove, whereby the door is opened and closed. The door shoe is guided by the sill groove, and the lower part of the door does not swing in the direction perpendicular to the opening and closing direction of the door. In such an elevator door, the door shoe is guided by the sill groove to open and close the door only when a force is applied in the direction to open and close the door by the mechanism for opening and closing the door, and vertical swing of the door occurs. Absent. However, when a large external force is applied in a direction perpendicular to the opening and closing direction of the door, there is a possibility that the door may be bent and the door shoe may float off the sill groove and be released.

  Heretofore, as a device for preventing such an elevator from coming off, there has been one configured such that an engaging portion provided on a door shoe is hooked in a notch provided in a sill groove, whereby There has been a door device in which the engaging portion is engaged with the notch of the sill groove even when an external force is applied to prevent the door shoe from coming off the sill groove (see, for example, Patent Document 1).

JP, 2010-241556, A

  In the door apparatus of Patent Document 1, since it is necessary to process a notch for fitting the engaging portion in the sill groove, the processing operation is complicated.

  An object of the present invention is to provide a door device which can be easily processed and which can suppress door-off.

Door device for an elevator according to the present invention is a single swing type door is provided in the lower part of the door, the whole Doashu fit the sill groove of sill, doorstop side frame than abut door sides to doorstop side frame A door release prevention member is provided which protrudes in the direction, and a storage portion for storing the door release prevention member below the door contact side frame when the door closes the entrance is provided below the door contact side frame.

  In the door apparatus of the elevator of the present invention, when the door closes the doorway, the door slip-out prevention member enters the housing portion at the lower part of the door contact side frame, so an external force is applied in a direction perpendicular to the opening and closing direction of the door Even if the door shoe is about to move upward due to bending, the door slip is limited because the door slip prevention member hits the lower part of the door contact side frame located at the upper part of the storage part and the door shoe is limited to move upward. It is prevented from coming out of the house.

The front view which showed schematic structure seeing the door apparatus of the elevator of embodiment of this invention from the hoistway side The principal part enlarged view of the door apparatus of the elevator of embodiment of this invention FIG. 3 is a view of the main part shown in FIG.

Embodiment 1
Hereinafter, the door apparatus of the elevator in embodiment of this invention is demonstrated using figures.

  The door apparatus of the elevator according to the first embodiment of the present invention is installed on each floor where the elevator car stops, and FIG. 1 is a front view schematically showing the door apparatus 1 of the elevator as viewed from the hoistway side. FIG. The door device 1 has two single-opening doors 2, and a door hanger 3 provided with a hanger roller 4 is provided at the top of each door 2. In addition, a door rail 5 for suspending the door 2 is provided at the upper part of the entrance which is opened and closed by the door device 1. A hanger roller 4 of the door 2 is hooked on the door rail 5 and rolls on the door rail 5. , The door 2 is opened and closed in the left and right direction in the figure. FIG. 1 shows a state in which the single-opening type door 2 is closed. When the single-opening type door 2 is opened, the two doors 2 move to the right while overlapping each other.

  A door contact side frame 6 is provided on the side of the entrance, which abuts when the door 2 closes the entrance, and a door pocket for housing the door 2 on the opposite side to the door contact side frame 6 at the entrance. 7 is provided.

  A sill 8 is provided at the lower part of the entrance and a sill 8a is provided on the upper surface of the sill 8 along the opening and closing direction of the door 2. And two door shoes 9 fitted in sill groove 8a of sill 8 are provided in the lower part of each door 2, and door shoe 9 is guided by sill groove 8a when door 2 opens and closes. Even when the door 2 opens and closes smoothly, even if an external force is applied to the door 2 in a direction perpendicular to the opening / closing direction of the door 2, the door 2 swings in the direction of the external force since the door shoe 9 is fitted in the sill groove 8a. I have not.

  Furthermore, out of the two door shoes 9 of the door 2 that strikes the door frame 6, the door shoe 9 on the door frame 6 side is provided with a door release prevention member 10 at a portion closest to the door frame 6. It is done. 2 is an enlarged view of a main part showing the lower left portion of the door apparatus 1 of FIG. 1 in an enlarged manner, and FIG. 3 is a cross-sectional view of the main part shown in FIG. It is. As shown in FIG. 2, the door slippage prevention member 10 protrudes toward the door contact side frame 6 rather than the side surface 2 a of the door 2 that contacts the door contact side frame 6. In the first embodiment, the door slip prevention member 10 is integrally formed on the door shoe 9.

  And below the door-contact side frame 6, the accommodating part 11 which accommodates the door removal prevention member 10, when the door 2 closes an entrance / exit is provided. The housing portion 11 is a portion having an upper surface formed by the lower surface 6a of the door frame 6 and forming a space in which a part of the door slip prevention member 10 is housed. In the present embodiment, the sill 8 is extended from the lower part of the entrance to the lower part of the door-sliding side frame 6, and the housing portion 11 is a sill located below the door-performing side frame 6 of the sill 8. It is surrounded and formed by the groove 8 a and the lower surface 6 a of the door contact side frame 6. In addition, the accommodating part 11 is not restricted to such a thing, What is necessary is just to form the space which accommodates the door-release prevention member 10 under the doorstop side frame 6. As shown in FIG.

  Next, an operation of the door device configured as described above will be described. As described above, since the door shoe 9 provided at the lower part of the door 2 is fitted in the sill groove 8a, the door shoe 9 is guided by the sill groove 8a when the door 2 opens and closes, and the door 2 opens and closes smoothly. At the same time, even if an external force is applied to the door 2 in a direction perpendicular to the opening and closing direction of the door 2, the door 2 does not swing because the door shoe 9 is fitted in the sill groove 8a.

  Here, when the door 2 is in a closed state, if a large external force is applied so that the door 2 bends in a direction perpendicular to the opening and closing direction of the door 2 from the floor side or the car side, the door 2 bends. The door shoe 9 is lifted up and becomes detached from the sill groove 8a. However, in the door device 1 having the configuration of the present embodiment, the door slippage prevention member 10 is the housing portion 11 even if the door shoe 9 is about to be lifted by applying a large external force to the door 2 that causes the door 2 to bend. Since the door 10 is intruded, the door slip prevention member 10 abuts on the lower surface 6 a of the door contact side frame 6 and the further lifting is suppressed. Therefore, the door shoe 9 does not come off the sill groove 8a, and the door 2 is prevented from coming off.

  The door device 1 of the present embodiment is provided with the door release prevention member 10 at the end when manufacturing the door shoe 9, extending the sill 8 below the door contact side frame 6, door contact side frame 6 By providing the housing portion 11 which forms a space below, it can be obtained without the need for a complicated manufacturing process.

  The door slip prevention member 10 may be provided on the door shoe 9 and may be provided, for example, by welding the door slip prevention part to the door shoe 9 in addition to providing the door shoe 9 by integral molding with the door shoe 9 as in the first embodiment. The detachment prevention part may be attached and provided by a method such as screwing.

Moreover, although the door apparatus installed in each floor was shown in this embodiment, the door apparatus of this invention has the same effect, even if installed in a cage | basket.

1 door device 2 doors 3 door hanger 4 hanger roller 5 door rail 6 door contact side frame 7 door bag 8 sill 9 door shoe 10 door detachment prevention member 11 storage portion 2a side surface 6a lower surface 8a sill groove

Claims (3)

A door rail at the top of the elevator entrance,
A single-opening type door suspended from the door rail and opening and closing the entrance;
A door stop side frame which is provided on the side of the entrance and which the door abuts when the door closes the entrance;
A sill provided at the lower part of the entrance and having a sill provided on the upper surface along the opening and closing direction of the door;
A door shoe provided at a lower portion of the door and fitted in the sill groove of the sill;
A door release preventing member provided on the door shoe and protruding toward the door contact side frame rather than the side surface of the door contacting the door contact side frame;
A storage portion provided below the door- stop side frame, the door-release prevention member being stored below the door- stop side frame when the door closes the doorway;
Elevator door device equipped with   The door apparatus of an elevator according to claim 1, wherein the door slip prevention member is integrally formed with the door shoe.   The door apparatus of an elevator according to claim 1, wherein the door slip prevention member is formed by attaching a slip prevention part to the door shoe.

Images